#include<iostream>
#include<cmath>
using namespace std;
int main()
{
  double a,b,c;
  cin>>a>>b>>c;
  cout.precision(5);
  cout<<fixed;
  double dd=b*b-4*a*c,d=sqrt(dd);
  double x=-b;
  if(dd<0)cout<<"No answer!";
  else if(dd==0)cout<<"x1=x2="<<x/2/a;
  else {
    if(a>0)
    cout<<"x1="<<(x-d)/2/a<<";x2="<<(x+d)/2/a;
    else cout<<"x1="<<(x+d)/2/a<<";x2="<<(x-d)/2/a;}
}